Padlock.



W. A, SEANKS.

PADLGCK.

APPLICATION FILED JULY 2, 1909.

lililllllm Simbel/Wou Application filed .uly 2,

To @ZL whom it may concern:

Be it known that i, iLLiaiii A. SiiANiis, a citizen of the United States, residing at Wolcott, in the county oi lffayne and State oi N ew York, have invented new and useful improvements in Padlocks, of which the following is a speeiiieatioii.

This invention appertains to the class of i locks provided with a liasp or bow t'or passing through the staple or like parts over which the lock member is passed and has for its object to provide a lock ot this character involving a minimum number of working parts and a simple construction free troni the usual number of joints and separate element-s.

rEhe invention has tor its object to construct a lock bolt, the lock bolt spring and the lock arrange the several elements so as to insure positive action and a responsive movement both when opening and securing the lock.

The invention consists of the novel te:

tures, details ot' construction and combinations of parts which hereinafter will be more particularly setiortli, illustrated in the accompanying drawings and pointed outin the appended claims.

Referring to the drawings forming a part of this specification: Figure l is a perspective view oit a hasp or pad lock embodying the invention. F ig. 2 is a sectional view oit the casing showing the parts in the relation assumedv when the hasp or bow is locked. Fig. 3 is a view similar to F ig. 2 showing the relative position ot the parts when the bow is released and thrown open. ifig. i is a transverse section on the line of Fig. 2, the tumbler and lock boltopeiator eing shown in full lines. Fig. 5 is a sectional view ot the tuniblerand key the latter being shown in full and separated from the tuinbler.

Corresponding and like parts are referred to in the following description indicated in all the views oi the drawings by the saine reference characters.

rEhe easing l for inclosing the operating parts may be ot any construction and coinprises front and back plates and an interposed rim, the latter closing the space termed between said plates. 'ihe bow 2 is pivoted to the case at 3 and its opposite end is beveled and provided with an opening or recess to receive the lock bolt li. A partition 5 is located within the easing near the bolt operator in one piece and to Specification of Letters "atcnt.

i969. Serial No. 505,'2.

end wall against which the end of the bow closes and terms a space in the upper end oi" which the tree end oit the bow enters.

rilie lock bolt is adapted to operate through an opening ioiined in the upper portion of the partition 5. Guides formed with or secured to a wall or plate ot the easing direct the lock bolt in its reciprocating movements. rihe lock bolt operator consists of a bar provided with a series of teeth 8 and is mounted etween guides tl projected inward troni both walls or plates oit' the cas ing. fr spring l0 connects the inner or end otl the lock bolt i with the forward end oit the lock .bolt operator and normally inclines tcthe end walls ot the easing. rihe lock bolt Ll, spring i0 and operator 'T are preferably formed from a single strip ot spring metal bent into the shape substantially as shown which appioi-iniates the form ot the letter Z the s ng i0 having a diagonal arran he lower end et the spring i0 is rount'ing as indiiter a lyielding or spring' a, tion ot t le aart i0 in the operation ot the lock.

rElie tumbler l2 is ot' cylindrical form and vor: v. mul

i is provided with an opening i3 to receive the end oi the key i7 said opening being tlat or oi' any desired formation according to the style ot the key to be employed. The tumbler l2 is mounted within the loes casing so as to receive a rotary movement and is provided witll teeth i5 adapted to mesh with the teeth 8 of the lock bolt operator so as to move the lock bolt to release the bow when it is required to open the lock. A spring i6 secured at one end to an end wall of the casing is adapted to have its opposite end engage with the pivot end of the bow so as to throw the latter open into the position about as indicated in i? ig. 8 when the lock bolt i is withdrawn.

Stops 1.7 and 11.8 extend inward from the partition 5 and curve in opposite directions. When the lock bolt 1i is projected, the rounded portion et the spring lO bears against both et the stops i7 and i8 as indicated in Fig. :2. Tfv'vhen the lock bolt is withdrawn, the rounded portion 1l oit the spring i0 bears against the stop i8 only as indicated in Eig. 3. lllhen the lock bolt operator 't' is thrown forward by the action of the key upon the tumbler i2, the rounde portion ii of the spring l() is compressed with the result that the upper end of the spring i() is thrown infil@ ward thereby withdrawing the lock bolt a and releasing the bow 2 which latter is thrown open by the spring 16 in the manner stated. `When the tumbler l2 is moved by the key lil, to bring the operator 7 into nor mal position, the rounded portion ll of the spring l assumes a normal position which is that indicated in Fig. 2 thereby throwing l the outer end of the lock bolt et across the From the foregoing description, taken iii connection with the accompanying drawings, l

the advantages of the construction and of Q t lock casing, and bow pivoted thereto at one the method of operation will be readily apparent to those skilled in the art to which the invention. appertains, and while l have described the principle of operation of the invention, together with the device which now consider to be the best embodiment thereof, l desire to have it understood that l the device shown is merely illustratire, and that such changes may be made when desiied as are within the scope of the claims appended hereto.

Having thus described the invention, what is claimed isl. In a padlock, the combination with the bow, of a lock bolt, a key-operated lock bolt operator, and a sprnig connectingl the inner end of the lock bolt and the forward end of 1 the lock bolt operator, the parts being arranged to operate to withdraw the lock bolt when the lock bolt operator is moved forward.

2. ii a padlock, the combination of a bow, a lock bolt, a lock bolt operator provided with teeth, a lock bolt spring connecting the inner end of the lock bolt with the forward end of the lock bolt operator, and a rotary key operated tumbler having teeth in mesh with the teeth of the lock bolt opeiatoi', the

parts being arranged to elfect withdrawal of the lock bolt when the lock bolt operator is thrown forward.

ln a padlock, the combination of the bow, a cooperating lock bolt, a lock bolt operator, a spring connecting the inner end of the lock bolt with the forward end of the lock bolt operator and having its lower portion made rounded, and a key operated tunibler for moving said lock bolt operator.

l. In a padlock, the combination with the end, a combined lock bolt, lock bolt operator and spring formed of a single piece bent into an approximate Z-form, a key operated tumbler for actuating the lock bolt operator, and oppositely disposed stops arranged to snugly form a seat for the lower end of the spring, and the relatively lowermost stop serving as a fulcruin for compressing the spring when the lock bolt operator is thrown forward to ei'fect withdrawal of the lock bolt.

ln testimony whereof I atlix my signature in presence of two witnesses.

WILLIAM A. SHANKS. lWitnesses: i

i-ioiiLnirr C. Brunn, Minnie A.. BRINK. 

